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# File 'lib/kamal/docker.rb', line 8
def included_files
Tempfile.create do |dockerfile|
dockerfile.write(<<~DOCKERFILE)
FROM busybox
COPY . app
WORKDIR app
CMD find . -type f | sed "s|^\./||"
DOCKERFILE
dockerfile.close
cmd = "docker buildx build -t=#{BUILD_CHECK_TAG} -f=#{dockerfile.path} ."
system(cmd) || raise("failed to build check image")
end
cmd = "docker run --rm #{BUILD_CHECK_TAG}"
out, err, status = Open3.capture3(cmd)
unless status
raise "failed to run check image:\n#{err}"
end
out.lines.map(&:strip)
end
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